Vacuum-cleaner.



C. A. LINDBERG.

VACUUM CLEANER.

APPLICATION FILED Emma, 1910.

1,03%027, Patented Aug. 27, 1912.

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C. A. LINDBERG. AVACUUM CLEANER.

APPLICATION FILED FEB.Z6, 1910.

Patented Aug. 27, 1912.

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a specification.

- CHARLES A. nmnnnns, oF BnAJJFonD, rsulvsv'LvANIA. y

-vacUniti-cremasn.

Specification of Letters Patent.

Patented Aug. 2v, i912.

Y Application led February 26, 19,10. Serial N o. 546,151.v

To all whom t may concern l 'Be it knownthat I, CHARLES A. Lm'nnnne,

a citizen of the United States of America,

residing at Bradford, -in the county of McKean and State of Pennsylvania, have invented new-'fand'useful Improvements in.

V'w'uiim-Cleaners, of which the following is This invention 'relates to vacuum cleaners,

and 'itshasfor its. object to producen device of this class' whichishall'posses's superior ad-l vantages-,ihpoint of simplicity; Idurability `and-general ielii'ciency; i With 'these and other ends 1n View, 'which will readily .appear as the natureof the invention is betterl understood, the same 'con-A sists in the improved construct'lonfand novel arrangement and combination of parts which wiilbe hereinafter fully `,described and vparticularly,pointedout inthe claimsf In thei accompanying drawings. vhas been illustrateda simple and 'preferred form` of the invention, it being, however, understood" that no limitation is necessarily made tot-he preciseastructuraldetails therein exhibited, but tha `changes,'alterations and'modications within the scope of the invention be resorted .to when desired.

illustrating a slight modification.

Corresponding arts in the several figures are denotediby'li re characters of reference. The frame' structure "of the improved machine includes a platform 1 having down' ward extending ianges 2, 2 combiningnvith 'the platforn'i to* form a box-like casing, the

side members of which afford bearings for stub axles 3 upon which. the supporting' wheels 4fare mounted, said supporting wheels being preferably 'provided `with rubber tires. 5to avoid slipping. Each ofthe supporting wheels is providedwith a friction ,rimv 6 which is preferably slightly beveledl or truncated, as shown.'

A shaft 7 which is supported for rotation in the side members'of the casing, carries friction disks 8-which are movablyI support-l edvby set screws 9 extending through the hubs or collars l() of said friction disks, soy that the latter may 1 be heldtightly lin en-V gagement "with4 the friction rims 6- of the `of the supporting wheels.

.may

' casmg by means of brace hooks 24, each in# to be cleansed,

`supporting' wheel-s from which motionwill in this manner be transmitted to the shaft v 7 The latter carries a spur wheel 11 meshing with pinions 12 upon shafts 13 which arev supported for rotation in bearings formed by. brackets.. 14 that arel firmly `Secured uponthe front and rear lianges of the casing. Each of the shafts 13 is provided'with terminal cranksy 15, one at each end, said cranks'bemg disposed adjacent to butfree from contact-With the friction rims f Supported 'upon the platform 1 is a 'base member ,1,6 upon which fou'rV pump cylinders 1.7 aresupported invert-ical or upright posiltion, as wellasa cylindrical casing 18. The ycasing 18 hasl a centralA aperture through which' a' tube 19 extends, saidv tube being also negnn'ded through-the platform l andconnected at its'lower endv by an'elbow 20 with the inlet? tube 121 which latter extends ,through the front flange of the casing, said.

inlet tube being connected with the mouth piece 22fby a flexible connection, such as a piece of rubber hose 23. The mouth piece,

which isofa width substantially equal to that lof/the casing, 'is connected with said cluding a turn buckle 25- whereby said hook members `may be adjusted to cause the mouth piece to bear against the surface to becleaned with varying degrees of tension.

The mouth piece is also connected lwith the casing by means of'y a tension .spring 26,

whereby said mouth piece is held efficiently in contact .withthe surface during the rear- Ward movement of the machine, the move ment in a forward direct-ion having an obvious tendency to bring the mouth piece into frictional engagement with the surface lThe pump 1 cylinders 17A surrounding the-casing 118, anda tightly fitting cap piece 27, resting `upon the upper edge of the casing 18, is provided to consti- .are disposed Vadjacent .to'the four'corners of the plat-form,

tute a tight-ly fitting cover for each of the 1 pump cylinders 17, said cap piece being connected with vthebase 16 by bolt members 28.

The cap piece which obviously extends circumferentially beyond the upper edge of the casing 18 is 'provided with an upstanding annular flange 29 to supporta detachable cover 30 having a-handle 31 whereby said cover, which constitutes a tightly fitting I `ol'osure,'may be mani ulated.

- Spring-actuated va ves 31, which 'are suplported in brackets 32, extending inwardly from the flange 29 open into the cylinders 17; and the 'lattnr are provided outside of the cover 30 of the casing with discharge fpertures which mi y be closed by outwardly l opening check valves 33. Pistons 34 operating in the respective cylinders are connected by link stems 35 with the cranks 15 vat the ends of the respective shafts 13.

rior groove or annular recess 43 lfor the convenient attachment of a strainer bag 44 iao formed preferably of textile material and supported in inverted position upon the deector 41, said bag being provided at the edge thereof with a binding wire 45 which may be of a resilient nature so as to fit and lie snugly within the groove 43.

A handle supporting yoke 46 is pivotally connected with the frame or casing of the machine in the usual well known manner.

It will readily appear from the foregoing description that when the machine is/trundied over a floor, carpet or other surface to be cleaned, the mouthpiece will be held in contact with such surface, and the rota'- tion of the supporting wheels will impart rotary lmotion through the shaft 7 to the shafts 13 having cranks 15 whereby the pump pistons .are actuated, said pistons serving on their downstroke to create suction in described, va wheel supported frame .structhe upper ends. of the cylinders 17 'and thencethrough the casing 18, strainer bag 44, supporting Y"tube 19, inlet tube.21"and through vthe mouth piece, which will thus take up all dirt particles and carry them forcibly through the several tubes 21, 19, 37 and 39, until the dust-laden air impinges upon the spreader 42 and the .deilector 41, the dust particles andv impurities being de``I flected into the receptacle 36, while the fil-y tered air will enter the pump cylinders to besubsequently expelled therefrom by thev upstroke of the pistons. The accumulated dirtA may be readily discharged by removing the cover 30 and the strainer bag, as

' well as the tube 39 carrying the deiect'or,

after which the receptacle 36 may be taken out and emptied.

Underl the slight modification illustrated in Fig. 5 of the drawings, thesupporting wheels, here `designated by 48, are providedV with internally toothed iianges 49 meshing with pinions 50 upon shafts 51 that are supported for rotation in brackets 52 upon the underside of the platform 1, each of the shafts 51 being provided with a crank 53 connected' with the lower end of the pitman 54, the upper end of'which is connected with a pump piston;

The improved device, as will be seen from the foregoing description, is very simple 4in construction and it has practically proven to be thoroughly'eiiicient for the purposes for whichit is provided. Under some circumstances it may be desired to operate the pumps by means of a crank 54 shown in dotted lines in Fig. 2 as being connected with a non-circular end of the shaft 7; while the pumps are thus operated, the casing may be supported stationary upon a suitable base, and the mouth piece may be detached from the brace members 24 and connected with the inlet by a iiexible hose of suitable len th to enable the mouth piece to be utilize for cleaning walls, ceilings and the like. v I-Ia ving thus described the invention, what is claimed as new, is

1. In a cleaning device of the character described, a wheel supported frame structure, a filter casing and suction producing means supported thereon, said suction producing means having communication with the filter casing and an outlet to the atmosphere, an inlet tube communicating with the filter casing, a mouth piece upon said inlet tube, a flexible connection between the mouth piece and the inlet tube, adjustable brace members connecting the mouth piece. 'with the frame structure, andv a' tension spring connecting the mouth piece with the frame structure.

A 2. In acleaning device ofthe character ture,a filter casing, and suction producing means supported thereon, said suction producing means having communication with the filter casing, and an outlet to the atmosphere, an inlet tube communicating with the lter casing, a mouth piece uponsaid inlet tube, a flexible connection between the mouth pieceand the inlet tube, brace hooks connecting the mouth piece with the frame structure, veach of said brace hooks including a vturn buckle for varying the length thereof, and a tension spring connecting the mouth piece with the frame structure.

In testimony whereof I aix my signature in presence of two-witnesses.

cHARnijs 'fA"..LnaDisERGf 'Witnesses Y R. M. SMITH,

BENNE'rr S. JONES'.- 

